Notes on practical mechanical drawing, written for the use of the students in general engineering drawing in the University of Illinois (1907)
Wilson, Victor Tyson, 1864- [from old catalog] · State College, Pa., The author · leaf 123
Fig. 3 1 … Working Drawings 115 being the minimum cross section of the material of whichthe screw is made. Unless, in exceeding^ rare cases, a large screw is to bedrawn to show up especially well, a conventional methodof showing the thread takes the place of the accurate one. Fig. 32
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
